Air Duct Repair in Charleston - Tested First, Written Price Second

Trusted Air Duct Repair for Charleston Homeowners

Air that smells musty, a room that never cools, or a telltale whistle at the register usually points to a break somewhere in the duct system. Duct repair closes that break so the air your system produces actually reaches the rooms you live in. Our technicians have up to 15 years of experience tracking down leaks, crushed runs, and disconnected joints in homes and light-commercial buildings around Charleston, and we carry the extraction and containment equipment to clean the system before we seal it. Same-day scheduling is often possible. Call (888) 274-9947 for a free estimate.

Call (888) 274-9947

HVAC Duct Installation

HVAC Duct Installation is the design and fitting of a new distribution system to move conditioned air from the air handler to every register in the building. You need it when a home is being built or gut-renovated, when an old system was sized for a different layout, or when a remodel added rooms the existing ductwork can’t reach. We start with a room-by-room look at return and supply placement, then fit sealed, insulated runs sized to the blower’s actual output. Typical HVAC duct installation in Charleston runs $1,800-$6,500 depending on square footage, number of runs, and whether the attic or crawlspace access is straightforward, and the written estimate sets the final price.

Layout and Sizing

Undersized supply runs starve a room of air no matter how good the equipment is. We measure static pressure and check the duct design against the blower’s rated airflow before anyone cuts a hole.

Sealing and Insulation

Every joint gets sealed and every run that crosses unconditioned space gets insulated. That keeps the air at temperature and cuts the load on the system.

Air Duct Replacement

Air Duct Replacement means taking out damaged or failed duct runs and putting new ductwork in their place rather than patching around them. It’s the right call when the existing system is crushed beyond repair, when flex duct has collapsed in multiple sections, or when a decades-old layout simply can’t be sealed well enough to matter. We pull the old runs, inspect what’s behind them, and fit new sealed duct sized to what your equipment actually moves. A typical air duct replacement in Charleston runs $1,200-$4,800 depending on how many runs are replaced and the condition of the framing and access points, with the written estimate setting the final price.

When Replacement Beats Repair

One crushed run is a repair. Four collapsed runs and a sagging trunk line are a replacement. We tell you which you’re looking at after we’ve seen it.

What Comes Out First

Old duct comes out with containment in place, so debris and dust don’t end up in your living space. Abatement Technologies air scrubbers run during the work.

Ductwork Repair

Ductwork Repair covers the fix-and-seal work on a system that’s still fundamentally sound: disconnected joints, torn flex, holes where a rodent got in, crushed sections behind a knee wall, and leaky trunk lines. You’ll know you need it when one room runs hot, airflow at a register is weak, or your energy bill has crept up without any change in how you run the system. We find the break, seal or replace that section, and verify airflow afterward. Typical ductwork repair in Charleston runs $250-$900 depending on how many leaks there are and how hard they are to reach, and the written estimate sets the final price.

Finding the Leak

We pressure-test the system and trace where air is actually escaping. Guessing wastes your money and our time.

Repair and Seal

Damaged sections get replaced and the rest of the system gets sealed. We photograph before and after so you can see the fix.

Duct Replacement

Duct Replacement is the broader job of swapping out a large portion of the system’s ductwork, often after a cleaning reveals that the interior lining is deteriorating or that the duct material itself is failing. You need it when the duct lining is shedding into the airstream, when the original install used materials that no longer hold up, or when a previous repair was done poorly and keeps failing. We clean what’s there first so we can see the true condition, then replace the failed sections with sealed, insulated duct. Duct replacement in Charleston typically runs $1,500-$5,500 depending on total footage and access, and the written estimate sets the final price.

Telling Replacement From Repair

If the duct’s internal lining is breaking down into the air, patching won’t fix it. Replacement is the only honest answer.

Material Choices

We fit duct to the space it runs through and to the system’s airflow, and we explain the tradeoffs before you decide.

Ductwork Installation

Ductwork Installation is putting in new duct runs as part of an addition, a system upgrade, or a buildout where ductwork never existed before. You need it when you’re adding a room, converting a garage, or moving an air handler and re-routing the distribution. We handle layout, sizing, sealing, and insulation, and we work around framing, plumbing, and wiring rather than through them. Ductwork installation in Charleston usually runs $900-$4,200 depending on how many runs and how much of it is new, with the written estimate setting the final price.

Working Around Existing Structure

Retrofitting duct into an existing house takes planning. We map the path before we start cutting.

Commissioning the New Runs

Once the new duct is in, we check airflow at each register and adjust dampers so the whole system stays balanced.

Brands We Service

We service Honeywell and Aprilaire filtration and indoor air quality equipment, and we know where each one tends to wear out. Honeywell media cabinets and electronic air cleaners are common in Charleston homes, and their filter frames and gaskets are a frequent source of bypass air when they age. Aprilaire humidifiers and media filters have their own service points, and we can speak to filtration upgrades honestly because we know the product lines. We don’t claim to be a dealer and we don’t claim to stock parts; we diagnose and recommend.

Our cleaning rigs are Rotobrush contact-cleaning systems and Nikro HEPA vacuum units, the same equipment tier used in commercial and restoration-grade work. Abatement Technologies air scrubbers run on-site during service so airborne contaminants are captured rather than recirculated. Whether you have Honeywell, Aprilaire, or any other make of filtration equipment, we can help.

Signs You Need a Pro Right Now

• Musty smell from the registers. That smell usually means moisture or debris sitting inside the duct. Left alone, it keeps feeding back into every room.
• One room never cools or heats. A single stubborn room points to a crushed or disconnected run. It’s usually cheaper to fix than to live with.
• Whistling or rattling at a vent. That noise is air escaping through a gap or a loose joint. It’s a sign the system is losing pressure.
• Visible dust puffs when the system kicks on. Debris is being pushed out of the duct and into your room. That’s a containment problem worth looking at.
• Energy bill climbing without explanation. Leaky duct sends conditioned air into the attic or crawlspace instead of the house. Sealing it usually pays back.

Our Process, Step by Step

1. 1
   Phone triage. We ask what’s happening so we arrive with the right equipment. Call (888) 274-9947. We answer 24/7, and fast dispatch runs 7am-7pm, Sunday through Friday.
2. 2
   On-site diagnosis. We inspect the ductwork, check airflow and static pressure, and look for leaks, crushed sections, and disconnected joints. You get a plain-language explanation of what we found.
3. 3
   Written estimate. We price the job per system, not per vent, and put the number in writing before any work starts. That number is the price.
4. 4
   Contained cleaning and repair. Rotobrush contact cleaning and Nikro HEPA extraction run alongside Abatement Technologies air scrubbers. We repair what we find while we’re in there.
5. 5
   Verification and photos. We check airflow at each register and hand you before-and-after photos of your own duct. You see what we saw.

How Much Does Air Duct Repair Cost in Charleston?

Our Service Area Near Charleston

We work throughout the Charleston area, including Mount Pleasant, James Island, Hanahan, Goose Creek, and Summerville, plus outlying towns like Moncks Corner, Ladson, and Ravenel. If you’re in the middle of the peninsula or out toward Sangaree, we can typically reach you within the same dispatch window: fast dispatch from 7am to 7pm, Sunday through Friday. Our Charleston team is set up for both residential and light-commercial duct repair across the region.

Frequently Asked Questions About Air Duct Repair in Charleston

Schedule Your Air Duct Repair Service in Charleston Today

If your ductwork is leaking, crushed, or failing, we can find it, fix it, and show you before-and-after photos of the repair. Call (888) 274-9947 for a free, no-obligation estimate. We answer 24/7, and fast dispatch runs from 7am to 7pm, Sunday through Friday. One flat price per system, agreed before work starts. One specialist, three services: air duct cleaning, dryer vent cleaning, and duct repair.

Written by the team at Charleston Duct Cleaning.